16857077 has 4 divisors (see below), whose sum is σ = 16907436. Its totient is φ = 16806720.

The previous prime is 16857059. The next prime is 16857079. The reversal of 16857077 is 77075861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77075861 = 5821 ⋅13241.

It can be written as a sum of positive squares in 2 ways, for example, as 8059921 + 8797156 = 2839^2 + 2966^2 .

It is a cyclic number.

It is not a de Polignac number, because 16857077 - 2⁸ = 16856821 is a prime.

It is a super-2 number, since 2×16857077² = 568322089967858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16857079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24674 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (4226859).

Almost surely, 2^16857077 is an apocalyptic number.

It is an amenable number.

16857077 is a deficient number, since it is larger than the sum of its proper divisors (50359).

16857077 is an equidigital number, since it uses as much as digits as its factorization.

16857077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50358.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 16857077 is about 4105.7370836428. The cubic root of 16857077 is about 256.4055512438.

The spelling of 16857077 in words is "sixteen million, eight hundred fifty-seven thousand, seventy-seven".